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201
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202Article of journalPublished in 1991Repositorio Universidad Nacional de Colombia
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203Article of journalPublished in 1986Repositorio Universidad Nacional de Colombia
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204Article of journalPublished in 1996Repositorio Universidad Nacional de Colombia
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205Article of journalPublished in 2003Repositorio Universidad Nacional de Colombia
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206Work documentPublished in 1973Repositorio Universidad Nacional de Colombia
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207Article of journalPor Oostra, ArnoldPublished in 2003Repositorio Universidad Nacional de Colombia
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208Article of journalPor Lezama, OswaldoPublished in 1989Repositorio Universidad Nacional de Colombia
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209Article of journalPor Dugand, ArmandoPublished in 1968Repositorio Universidad Nacional de Colombia
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210Article of journalPublished in 2003Repositorio Universidad Nacional de Colombia
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211Article of journalPublished in 1991Repositorio Universidad Nacional de Colombia
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212Article of journalPublished in 2014Repositorio Universidad Nacional de Colombia
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213
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214Article of investigationPublished in 2010Repositorio Repositorio ICESI
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215
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216
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217
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218
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219
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220Article of investigationPublished in 2015Repositorio Repositorio Institucional ECI
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